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Expression of low endotoxin 3-O-sulfotransferase in Bacillus subtilis and Bacillus megaterium. 2013

Wenya Wang, and Jacob A Englaender, and Peng Xu, and Krunal K Mehta, and Jiraporn Suwan, and Jonathan S Dordick, and Fuming Zhang, and Qipeng Yuan, and Robert J Linhardt, and Mattheos Koffas
College of Life Science and Technology, Beijing University of Chemical Technology, Box 75, Beijing, 100029, China.

A key enzyme for the biosynthesis and bioengineering of heparin, 3-O-sulfotransferase-1 (3-OST-1), was expressed and purified in Gram-positive Bacillus subtilis and Bacillus megaterium. Western blotting, protein sequence analysis, and enzyme activity measurement confirmed the expression. The enzymatic activity of 3-OST-1 expressed in Bacillus species were found to be similar to those found when expressed in Escherichia coli. The endotoxin level in 3-OST-1 from B. subtilis and B. megaterium were 10(4)-10(5)-fold lower than that of the E. coli-expressed 3-OST-1, which makes the Bacillus expression system of particular interest for the generation of pharmaceutical grade raw heparin from nonanimal sources.

UI MeSH Term Description Entries
D004731 Endotoxins Toxins closely associated with the living cytoplasm or cell wall of certain microorganisms, which do not readily diffuse into the culture medium, but are released upon lysis of the cells. Endotoxin
D001410 Bacillus megaterium A species of bacteria whose spores vary from round to elongate. It is a common soil saprophyte. Bacillus megatherium
D001412 Bacillus subtilis A species of gram-positive bacteria that is a common soil and water saprophyte. Natto Bacteria,Bacillus subtilis (natto),Bacillus subtilis subsp. natto,Bacillus subtilis var. natto
D001426 Bacterial Proteins Proteins found in any species of bacterium. Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D015238 Sulfotransferases Enzymes which transfer sulfate groups to various acceptor molecules. They are involved in posttranslational sulfation of proteins and sulfate conjugation of exogenous chemicals and bile acids. EC 2.8.2. Sulfotransferase

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